cargo_lock/dependency/graph.rs
//! `petgraph` types used for modeling the `dependency::Tree`.
pub use petgraph::{graph::NodeIndex, EdgeDirection};
use crate::{dependency::Dependency, package::Package, Map};
/// Dependency graph (modeled using `petgraph`)
pub type Graph = petgraph::graph::Graph<Package, Dependency>;
/// Nodes in the dependency graph
pub type Nodes = Map<Dependency, NodeIndex>;